A new damage model to predict orthotropic nonlinear behavior of woven glass-epoxy composite by experiment and iterative simulation
- سال انتشار: 1395
- محل انتشار: پنجمین کنفرانس بین المللی کامپوزیت
- کد COI اختصاصی: COMPOSIT05_068
- زبان مقاله: انگلیسی
- تعداد مشاهده: 368
نویسندگان
PhD student, Department of Mechanical Engineering, Bu-Ali Sina University, Hamedan, Iran
Professor, Department of Mechanical Engineering, Bu-Ali Sina University, Hamedan, Iran
Professor, Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Cassino, Italy
Ph.D. Researcher, Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Cassino, Italy
چکیده
In the present work a new damage model based on CDM is proposed to predict the nonlinear behavior of woven glass fiber composite under tensile test. Orthotropic mechanical properties such as elasticity modulus and Poisson s ratio are determined by experiment. The tensile test showed that the material behavior was brittle elastic.However, the stress-strain curve was exhibited a nonlinear fashion. A new damage model was proposed and implemented via a user subroutine in MSC MARC. Moreover, the damage parameters were optimized by Genetic Algorithm. In conclusion the damage model can predict the nonlinear behavior of composite in both warp and weft direction with reasonable agreement in comparing with experiment.کلیدواژه ها
Continuum damage mechanic, Woven fiber glass, Finite element, Iterative simulation, Orthotropic behaviorمقالات مرتبط جدید
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